US659503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating sewage.
Assignee: Individual
•
Filing: 1899-04-11
•
Granted: 1900-10-09
•
Expires: 1919-04-11
Abstract
No abstract record available.
Inventors
- 👤 Robert J G Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:50
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/0232; B; B01; B01D; B01D1/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1903-10-09 | 1904-04-09 | 1904-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-10-09 | 1908-04-09 | 1908-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-10-09 | 1912-04-09 | 1912-10-09 | $7700.00 | Window Closed / Lapsed |